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Plant Physiology 73:195-198 (1983) © 1983 American Society of Plant Biologists Effect of Flooding on Starch Accumulation in Chloroplasts of Sunflower (Helianthus annuus L.) 1Department of Horticulture and Landscape Architecture, Washington State University, Pullman, Washington 99164-6414, Electron Microscope Center, University of Idaho, Moscow, Idaho 83843
Chloroplasts in leaves of sunflower (Helianthus annuus L. cv hybrid 894) whose roots were flooded for 4 days showed an increase in the level of starch in chloroplasts when examined with the electron microscope. Starch determination showed significantly higher levels in leaves of flooded plants. Chloroplast and mitochondrial structure seemed otherwise normal.
1 Partial support for this research was supplied by a Medical and Biological Research Grant from Washington State University to R. L. W. Scientific Paper No. SP 6533, College of Agriculture, Washington State University.
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